20475903

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 32735232

約数和(自身を除く): 12259329

約数列:

[1, 3, 7, 21, 31, 71, 93, 213, 217, 443, 497, 651, 1329, 1491, 2201, 3101, 6603, 9303, 13733, 15407, 31453, 41199, 46221, 94359, 96131, 220171, 288393, 660513, 975043, 2925129, 6825301, 20475903]

約数ペア:

[(1, 20475903), (3, 6825301), (7, 2925129), (21, 975043), (31, 660513), (71, 288393), (93, 220171), (213, 96131), (217, 94359), (443, 46221), (497, 41199), (651, 31453), (1329, 15407), (1491, 13733), (2201, 9303), (3101, 6603)]